Which of the following statements accurately reflects Zscaler's file size limitation for Malware Protection scans?

Malware scanning has practical file-size limits because the service must inspect objects inline without creating unacceptable latency. The tested Zscaler limit for Malware Protection scans is 400 MB. Larger files require different risk handling, policy design, or sandbox workflows depending on deployment requirements. Option D (Zscaler scans files up to 400 MB) is correct because it states the 400 MB scan limit.

Why the other options are incorrect:

A. Zscaler scans all files regardless of size: Scanning every file regardless of size would create unrealistic latency and resource requirements. Zscaler documents a maximum scan size instead.

B. Zscaler scans files only if they are below 100 MB: A 100 MB limit understates the documented malware-scan size limit. The tested maximum is 400 MB.

C. Zscaler scans files up to 500 MB: A 500 MB limit overstates the documented malware-scan size limit. The tested maximum is 400 MB.